親子觀星會

https://10minuteastronomy.wordpress.com/diy-astronomy-projects/

(https://10minuteastronomy.files.wordpress.com/2014/11/diy-3-inch-travelscope-reborn.jpg?w=450&h=337)

(https://10minuteastronomy.files.wordpress.com/2012/07/1-venus-transit-in-astroscan.jpg?w=450&h=450)
這DIY 投太陽黑子好像不錯


Build A Sun Funnel
http://www.davidreneke.com/build-a-sun-funnel/#

http://iskywatch.com/2012/05/iskywatch-sun-funnel-build/



(https://10minuteastronomy.files.wordpress.com/2012/06/filtered-scope-filter-and-shield.jpg?w=675&h=900)

效果很不錯！